<!DOCTYPE html>
<html lang="zh">
	<head>
		<meta charset="UTF-8">
		<meta name="viewport" content="width=device-width, initial-scale=1.0">
		<meta http-equiv="X-UA-Compatible" content="ie=edge">
		<title></title>
	</head>
	<body>
		
	</body>
	<script type="text/javascript">
		// globalThis   全局的this  始终指向全局对象
		console.log(globalThis);// Window
	</script>
</html>